warm the baby oil, it thins and takes on these other qualities.  However, a porn movie producer I know in LA says you can get a good "oiled" effect with Pam cooking spray by spraying it on lightly and then spreading it out evenly.  

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Here’s an answer from AI:

1. Using products to create shine
Oils: Photographers commonly use oils like baby oil, mineral oil, or even cheap olive oil on the model's skin to create a shiny effect. These oils sit on the skin's surface and reflect light, creating a dewy look. However, oil-based products can be messy and difficult to remove.
Glycerin: A popular alternative to oil is glycerin, often mixed with water to reduce its thickness. Glycerin is non-staining, water-soluble, and creates a thick, shiny effect.
Hair Sheen Spray: Some photographers use hair sheen sprays (often containing olive oil) on the skin, as they are designed to create shine and can be sprayed from a distance for easier application.
Glycerin/Water Combo: A mixture of three parts water to one part glycerin, applied as a spray, is a popular method to get a beaded water effect, similar to sweat. This can be particularly effective when layered over skin that has already been oiled

Thanks to all - looks like multiple good options to try out!

At times its the gal who has been moisturizing regularly mixed with sweat. The ligjting hits it right and viola.